10 U.S.C. § 8089

(a) (1) There is a Deputy Judge Advocate General of the Navy who is appointed by the President from among judge advocates of the Navy and Marine Corps who have the qualifications prescribed for the Judge Advocate General. (2) Under regulations prescribed by the Secretary of Defense, the Secretary of the Navy, in selecting an officer for recommendation to the President for appointment as the Deputy Judge Advocate General, shall ensure that the officer selected is recommended by a board of officers that, insofar as practicable, is subject to the procedures applicable to selection boards convened under chapter 36 of this title. (3) If the Secretary of the Navy elects to convene a selection board under section 611(a) of this title to consider eligible officers for selection to appointment as Deputy Judge Advocate General, the Secretary may, in connection with such consideration for selection— (A) treat any section in chapter 36 of this title referring to promotion to the next higher grade as if such section referred to promotion to a higher grade; and (B) waive section 619(a)(2) of this title if the Secretary determines that the needs of the Navy require the waiver. (b) An officer of the Judge Advocate General’s Corps who has the qualifications prescribed for the Judge Advocate General in section 8088(b) of this title may be detailed as Assistant Judge Advocate General of the Navy. An officer who is retired while serving as Assistant Judge Advocate General of the Navy under this subsection or who, after serving at least twelve months as Assistant Judge Advocate General of the Navy, is retired after completion of that service while serving in a lower rank or grade, may, in the discretion of the President, be retired with the rank and grade of rear admiral (lower half). (c) A judge advocate of the Marine Corps who has the qualifications prescribed for the Judge Advocate General in section 8088(b) of this title may be detailed as Assistant Judge Advocate General of the Navy. An officer who is retired while serving as Assistant Judge Advocate General of the Navy under this subsection or who, after serving at least twelve months as Assistant Judge Advocate General of the Navy, is retired after completion of that service while serving in a lower rank or grade, may, in the discretion of the President, be retired with the rank and grade of brigadier general. (d) When there is a vacancy in the Office of the Judge Advocate General, or during the absence or disability of the Judge Advocate General, the Deputy Judge Advocate General shall perform the duties of the Judge Advocate General until a successor is appointed or the absence or disability ceases. (e) When subsection (d) cannot be complied with because of the absence or disability of the Deputy Judge Advocate General, the Assistant Judge Advocates General, in the order directed by the Secretary of the Navy, shall perform the duties of the Judge Advocate General.